Water-wheel.



D. B. REPLOGLE.

'WATER WHEEL APPLIOATION'IILBD JULY 7, 1909.

1,036,663., Patented Aug.20,1912

. DANIEL BENSON REPLOGLE, 'OF BERKELEY, CALIFORNIA.

' WATER-WHEEL.

. 1,03 ,003, Specification of Lettersfatent. Yatentgd A110, 29, 1912;Application filed July 7 190s. Serial No. 506,312.

To'aZZ whom it may concern: substituted by bolts if desired, but theyare Be it known that I, DANIEL BENSON REP- preferably headless andtight-fitting, ex- LOGLE, a citizen of the United States, residtendinbut little if any beyond the surface ing at Berkeley, in the county ofAlameda of the .ugs. The main body of the bucket 50 5 and State ofCalifornia, have invent-ed a is composed of two basins, 66 separated newand useful lVater-Nheel, of which the by a dividing jetty ridge 7, thevertex line following is a specification. of which ridge merges from acircumferen- This invention relates to improvements in tial direction orvertical position at .7 to a water ,wheels and buckets,.in the type ofradial direction or level position in the vi- 5 10 wheel known ashurdy-gurdy or tangential; cinity of 7" and vanishes in an upwardly andthe objects of the invention are, the curved position at the recurvedtip of the elimination of improper angular obstrucbucket 5".' The axesof the basins of the tionscurtailing efficiency, the construction bucketconverge from base to tip, the side of'every part of the exposed surfaceof the walls of each approximating an ovoid in 7 bucket so as toofierlea'st resistance to air outline so that the capacity of eachincreases and water in revolving, to preserve the maxifrom tip to base.The curvatureat the bot mum etliciency throughout the arc of stream tomof each basin is graduallyfincreased engagement,.and to provide meansfor rigid from tip to base asshown in the cross sec-. attachment to therim and solid impingement tion of one of the basins in Fig. 5. A 75 of:the several buckets to consecutive ones proper curvature for this partmay beproon the entire periphery of the wheel. These jected or generatedby using a circle 16 haw improvements are attained by the construcing adiameter of one sixth of the intended v ti'on herein set forth andillustrated in the long diameter of the basin, as an evolute andaccompanying drawing, in whichthat part of the evolvent used lyingbeyond 30 Figure 1 is a side View of three consecuthe tanget X Y,thesaid tangent being extive buckets of a tangential water wheel, tendedin both directions and. equaling in constructed and attached accordingto my lcngt-h'six times the diameter of said circle. invention, theaction of 'the same being The transverse curvature of the bottoms ofpartly illustrated by dotted lines; Fig. 2, the basins may be similarlymade as shown 35 a front view, partly in cross section of one in thecurve 7 5 Fig. 2, the steeper part of of the buckets sectioned on thelin A B of the curve in the'transverse being in themid- Figs. 1 and 3;Fig. 3, a top plan view of the die, soas to more gradually lead thestream basins or .upper face of one of my buckets; which is to bedivided to the reverse tan- Fig. 4, a top plan view of the connectinggential direction whence it came. The outer so lugs of the bucketsecured to a portion of the end of the curves at 5, as well as thebalance rim shown in crossrsection; Fig. 5 shows a of the external brimsof the basins, termi cross section taken on the line C Dot Fig. nate ina vertical or an approximately ver- 3, and'respecially showin thelongitudinal tical aspect when the bucket is placed in the curvatureofthebottom of the basin and the position shown in Fig. 2. The incurved95 40 method for determiningsaid curvature; Fig. part of the brimsmeeting at 5 is gaged by 6 isa view in cross section o'f'portions of twomeans of a radius little greater than half consecutive buckets .taken'on the line E F the diameter of stream to be used; and the of Fig.4, andshowing themethod of comaspect of the bottomwall at this point orpletingim'pingement between two conseculip is such as to be parallel tothe stream 100 5 tive buckets; Fig. 7 shows a;wedge or key at theinitial of its engagement therewith, used in securing the buckets; Fig.8 shows and the exterior surface in that vicinity the details of a formof bolt and washer merges into a bottom splitting ridge or keel whichmay be used as an alternative means 8, the surface and vertex of whichalso for completing impingement merge into the circumferential ridge 8which we Similar characters of reference refer to is adapted to registerwith the similar upper like or corresponding parts in the-several ridgeof'a consecutive bucket as at 9', the Views. vertex being in acircumferential line of the The rim or disk 1 is fittedwith transversewheel-plane. A bore hole 0 other opening ins 2, 2, etc., passing throughdrill holes 3 l 10 extends from the exterior of thebucket to 0 off therim and corresponding holes in the l the hollow cavity 11 of theinterior, whic lugs 4, t of the bucket. The pins may be cavity is mademainly for the purpose of lighter construction and added strength, ithaving no communication with the'basins of the bucket. A transversegroove 9 is cut in the registering facesof the bucket base and iscommunicated with by means of a bore hole 12 also leading to theinterior 11. When .the buckets are placed in position these grooves forma transverse hole, which may be square, round or.other shape, and isadapted to receive an expanding bolt or other expanding material usedfor making solid attachment and perfect impingement. The attachment ofthe bucketis effected as follows: The lugs are shaped so that the 15,required number of buckets when placed on the rim of the wheel willapproximately fit up as shown, the lug portions tapering on radial linesaccording to the curvature of the wheel. Each is first secured by thetwo 2a pins; then wedges or keys 15 are driven into the grooves 14 eachbeing driven radially outward, throughout the circumference of thewheel.In this way all the buckets are forced to draw outward on the transversepins 2, 2, etc., tightly gripping on the outer ends of said pins. Whileheld in this ri id condition, transverse bolts having hea s as 17 may beinserted at 9, 9, etc., and with washer 17 placed on the shanks 18 maybe as drawn tightly at 9 by means of a nut 19, so that impingement ismaintained at a point outward of the pins and each bucket is heldsecurely from rocking or shaking by the consecutive buckets betweenwhich it is placed. Instead of the transverse bolts last named, hotBabbitt metal may be poured through the-bores 10 and 12 and allowed tocompletely fill the groove 9and any possible space at 9 between thebuckets, at the same so time filling any space as 13 which may exist 7between the lower portion of the bucket base and the outer edge of therim 1.

It is evident many of the details may be varied according to the size ofthe wheel on which the buckets are to be used; for example in largesized buckets asquare tubular hole would appear in place of thebore hole10, and the inner sides of the lugs 4 might be bossed around the pinsleaving a comparatively thin shell midway between the pins. It should beespecially noted that impingement is effected well forward of the pins2, 2, and approximately in the line of pres." IIG produced by the actingstream 20.

The babbitt used should have a sufiicient quota of antimony for toslightly expand during cooling vand said babbitt may even take the placeof steel or iron in the wedges 15. The strain tending to spread thebuckets on the rim, whether caused by driving the wedges radially,inserting taper bolts or pouring expanding metal, tends to increase thediameter of the circle or arch in which the buckets are arranged thuscramping each out against its transverse pins or bolts. This .by reasonof their modifying the impact so as to extract the power of the streamwithout its hammering shock. In the operation of this bucket'it will benoted that at the initial part of its engagement the nearer half of thestream being received on a steep slope of the tip, by reason of theaspect of 30 the bucket, is largely directed backward, the main portionof it leavin at 6". The greater curvature due to the mvolute shapemaintains greater degree of impact throughout this range, by reason ofcompensating 5 for decreasing radial distance from center of the wheel,and also'for the slowing effect due to the friction of the water itselfon the concave surfaces of the basins. The widening ovoidshaped form ofthe outlines and the downwardly curving brims of the outer side wallsalso furnish increased facility for efllux of the used water, tocompensate for increased volume due to the slowing effect of thesurfaces, on the stream.' When 5 the bucket is receiving the further orouter half of the stream, its basins arein a crowded condition, and thefront or tip walls now being brought to a more favorable-aspect for exitof the water, much of the latter water is discharged tangentially offthe tips at 6, 6. The inner surface of the side boundary rim of thebucket, being adapted to return the water in a direction parallel to theimpact, would have a tendency to throw it forcibly against the outsidewalls of the next succeeding bucket and thus interfere with theefficiency of the wheel, but this tendency is obviated by tapering thebucket rapidly from base to tip making the basins ovoid as aforesaid, sothatthe water discharged by any side portion of the rims of said basinswhen directed backward parallel to the impact stream aforesaid, willpass said succeeding bucket in a latitude where it is narrower than thatpart of the receding bucket whence it was ejecte The splitting ridgeextending over the exterior bottoms of the buckets-tend to reduce windresistance and also aid in voiding spray water, which may be deflectedinto the wheel by neighboring wheels or defective wheel pitarrangements. Should the impact stream be directed tangentially tooclose to the wheel, this construction of bucket is adapted to void thewater with less resistance than in constructions heretofore used, sothat greater efliciencies may be attained through a larger range ofnozzle positions; thus obviating the difficulties due to slight mis: 33%

placements, of nozzle or wheel, at the time .,of installation, orafterward. When a broken bucket is to be replaced the babbitt 9 orexpanding bolt 17 1s first forced out from between, adjacent buckets andone tobe removed, the wedges or keys are then backed out and finally thepins driven out, In

replacing, the pins are driven first, then the wedges and finally thebabbitt 9 in, or expanding bolt placed.

Having thus described my invention, what I claim and desire to secure byLetters Patent is I a 1. In combination with a water-wheel rim of aseries of peripheral buckets, lugs on having drill holes, a series ofbuckets with lugs having corresponding holes, pins extending through theholes and securing the buckets consecutively to the rim, bases on thebuckets with hollow interiors and adapted to receive expanding metal tocomplete impingement of the buckets and force them into a eater circlecram in the 111 on in 7 P g the pins aforesaid as specific 3. In thebucket of a water wheel of the kind described, the combination of sidewalls having rims lying in curves dipping downward. of a horizontalplane -1ntermediate of the ends of the bucket outlining a 'pair' ispoured of intersecting ovoid shaped basins, a divide ing jetty ridgeseparating said basins, said jetty ridge merging from a verticalposition, to the axes of said oval basins to a level positionlongitudinal with res act to them and vanishing at the tip of theucket,wlierc the small ends of the oval basins intersect, I

substantially as specified.-

4;. In the bucket of a water-wheel, side walls and bottom wallsdelineating'a pair of equal and similar intersecting basins, the

side Walls of each of said basins having surfaces conforming to involutecurves increasing from sides inward as specified.

5. In a water wheel bucket of the kind described, side walls including apair of ovoid shaped basins Widening from tip to base,

the bottoms of said basins increasing in curvature from tip toward baseand from brim toward middle, and the outlines of said brims'curvedoutward and downward in conformity to the depth of the basins aforesaidas and for the purpose s ecified.

(3. In a water-wheel bucket ot the kind de" scribed, side walls andbottom walls, a base or lug portion from which said walls project andsaid Walls disposed to configure a pair of intersecting ovoid oregg-shaped basins with converging axes, their ampler ends con-- tiguousto the base portion of the bucket and the side walls having brunsdipping down,

ward of a plane horizontal to said axes and in partial conformity to thedepth of the basins substantially as specified.

DANIEL BENSON REPLOGLE, \Vitnesses:

ELLIS C. WILSON, MABEL GOHRMAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner or Patents,

, -Washington, D. 0. Y

